drm/i915: Clean up pre-skl wm calling convention

Just pass the full atomic state+crtc to the pre-skl watermark
functions, and clean up the types/variable names around the area.

Note that having both .compute_pipe_wm() and .compute_intermediate_wm()
is entirely redundant now. We could unify them to a single vfunc.
But let's do this one step at a time.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210609085632.22026-5-ville.syrjala@linux.intel.comReviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/i915/display/intel_display.c

@@ -7288,12 +7288,13 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
 	}
 
 	if (dev_priv->display.compute_pipe_wm) {
-		ret = dev_priv->display.compute_pipe_wm(crtc_state);
+		ret = dev_priv->display.compute_pipe_wm(state, crtc);
 		if (ret) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "Target pipe watermarks are invalid\n");
 			return ret;
 		}
+
 	}
 
 	if (dev_priv->display.compute_intermediate_wm) {
@@ -7306,7 +7307,7 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
 		 * old state and the new state.  We can program these
 		 * immediately.
 		 */
-		ret = dev_priv->display.compute_intermediate_wm(crtc_state);
+		ret = dev_priv->display.compute_intermediate_wm(state, crtc);
 		if (ret) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "No valid intermediate pipe watermarks are possible\n");

drivers/gpu/drm/i915/i915_drv.h

@@ -269,8 +269,10 @@ struct drm_i915_display_funcs {
 	int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
 	int (*get_fifo_size)(struct drm_i915_private *dev_priv,
 			     enum i9xx_plane_id i9xx_plane);
-	int (*compute_pipe_wm)(struct intel_crtc_state *crtc_state);
-	int (*compute_intermediate_wm)(struct intel_crtc_state *crtc_state);
+	int (*compute_pipe_wm)(struct intel_atomic_state *state,
+			       struct intel_crtc *crtc);
+	int (*compute_intermediate_wm)(struct intel_atomic_state *state,
+				       struct intel_crtc *crtc);
 	void (*initial_watermarks)(struct intel_atomic_state *state,
 				   struct intel_crtc *crtc);
 	void (*atomic_update_watermarks)(struct intel_atomic_state *state,

drivers/gpu/drm/i915/intel_pm.c

@@ -1370,11 +1370,11 @@ static bool g4x_compute_fbc_en(const struct g4x_wm_state *wm_state,
 	return true;
 }
 
-static int g4x_compute_pipe_wm(struct intel_crtc_state *crtc_state)
+static int g4x_compute_pipe_wm(struct intel_atomic_state *state,
+			       struct intel_crtc *crtc)
 {
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	struct intel_atomic_state *state =
-		to_intel_atomic_state(crtc_state->uapi.state);
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
 	struct g4x_wm_state *wm_state = &crtc_state->wm.g4x.optimal;
 	int num_active_planes = hweight8(crtc_state->active_planes &
 					 ~BIT(PLANE_CURSOR));
@@ -1451,20 +1451,21 @@ static int g4x_compute_pipe_wm(struct intel_crtc_state *crtc_state)
 	return 0;
 }
 
-static int g4x_compute_intermediate_wm(struct intel_crtc_state *new_crtc_state)
+static int g4x_compute_intermediate_wm(struct intel_atomic_state *state,
+				       struct intel_crtc *crtc)
 {
-	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	struct intel_crtc_state *new_crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	const struct intel_crtc_state *old_crtc_state =
+		intel_atomic_get_old_crtc_state(state, crtc);
 	struct g4x_wm_state *intermediate = &new_crtc_state->wm.g4x.intermediate;
 	const struct g4x_wm_state *optimal = &new_crtc_state->wm.g4x.optimal;
-	struct intel_atomic_state *intel_state =
-		to_intel_atomic_state(new_crtc_state->uapi.state);
-	const struct intel_crtc_state *old_crtc_state =
-		intel_atomic_get_old_crtc_state(intel_state, crtc);
 	const struct g4x_wm_state *active = &old_crtc_state->wm.g4x.optimal;
 	enum plane_id plane_id;
 
-	if (!new_crtc_state->hw.active || drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi)) {
+	if (!new_crtc_state->hw.active ||
+	    drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi)) {
 		*intermediate = *optimal;
 
 		intermediate->cxsr = false;
@@ -1890,12 +1891,12 @@ static bool vlv_raw_crtc_wm_is_valid(const struct intel_crtc_state *crtc_state,
 		vlv_raw_plane_wm_is_valid(crtc_state, PLANE_CURSOR, level);
 }
 
-static int vlv_compute_pipe_wm(struct intel_crtc_state *crtc_state)
+static int vlv_compute_pipe_wm(struct intel_atomic_state *state,
+			       struct intel_crtc *crtc)
 {
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct intel_atomic_state *state =
-		to_intel_atomic_state(crtc_state->uapi.state);
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
 	struct vlv_wm_state *wm_state = &crtc_state->wm.vlv.optimal;
 	const struct vlv_fifo_state *fifo_state =
 		&crtc_state->wm.vlv.fifo_state;
@@ -2095,19 +2096,20 @@ static void vlv_atomic_update_fifo(struct intel_atomic_state *state,
 
 #undef VLV_FIFO
 
-static int vlv_compute_intermediate_wm(struct intel_crtc_state *new_crtc_state)
+static int vlv_compute_intermediate_wm(struct intel_atomic_state *state,
+				       struct intel_crtc *crtc)
 {
-	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
+	struct intel_crtc_state *new_crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	const struct intel_crtc_state *old_crtc_state =
+		intel_atomic_get_old_crtc_state(state, crtc);
 	struct vlv_wm_state *intermediate = &new_crtc_state->wm.vlv.intermediate;
 	const struct vlv_wm_state *optimal = &new_crtc_state->wm.vlv.optimal;
-	struct intel_atomic_state *intel_state =
-		to_intel_atomic_state(new_crtc_state->uapi.state);
-	const struct intel_crtc_state *old_crtc_state =
-		intel_atomic_get_old_crtc_state(intel_state, crtc);
 	const struct vlv_wm_state *active = &old_crtc_state->wm.vlv.optimal;
 	int level;
 
-	if (!new_crtc_state->hw.active || drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi)) {
+	if (!new_crtc_state->hw.active ||
+	    drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi)) {
 		*intermediate = *optimal;
 
 		intermediate->cxsr = false;
@@ -3144,10 +3146,12 @@ static bool ilk_validate_pipe_wm(const struct drm_i915_private *dev_priv,
 }
 
 /* Compute new watermarks for the pipe */
-static int ilk_compute_pipe_wm(struct intel_crtc_state *crtc_state)
+static int ilk_compute_pipe_wm(struct intel_atomic_state *state,
+			       struct intel_crtc *crtc)
 {
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
 	struct intel_pipe_wm *pipe_wm;
 	struct intel_plane *plane;
 	const struct intel_plane_state *plane_state;
@@ -3220,16 +3224,16 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *crtc_state)
  * state and the new state.  These can be programmed to the hardware
  * immediately.
  */
-static int ilk_compute_intermediate_wm(struct intel_crtc_state *newstate)
-{
-	struct intel_crtc *intel_crtc = to_intel_crtc(newstate->uapi.crtc);
-	struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
-	struct intel_pipe_wm *a = &newstate->wm.ilk.intermediate;
-	struct intel_atomic_state *intel_state =
-		to_intel_atomic_state(newstate->uapi.state);
-	const struct intel_crtc_state *oldstate =
-		intel_atomic_get_old_crtc_state(intel_state, intel_crtc);
-	const struct intel_pipe_wm *b = &oldstate->wm.ilk.optimal;
+static int ilk_compute_intermediate_wm(struct intel_atomic_state *state,
+				       struct intel_crtc *crtc)
+{
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	struct intel_crtc_state *new_crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	const struct intel_crtc_state *old_crtc_state =
+		intel_atomic_get_old_crtc_state(state, crtc);
+	struct intel_pipe_wm *a = &new_crtc_state->wm.ilk.intermediate;
+	const struct intel_pipe_wm *b = &old_crtc_state->wm.ilk.optimal;
 	int level, max_level = ilk_wm_max_level(dev_priv);
 
 	/*
@@ -3237,9 +3241,10 @@ static int ilk_compute_intermediate_wm(struct intel_crtc_state *newstate)
 	 * currently active watermarks to get values that are safe both before
 	 * and after the vblank.
 	 */
-	*a = newstate->wm.ilk.optimal;
-	if (!newstate->hw.active || drm_atomic_crtc_needs_modeset(&newstate->uapi) ||
-	    intel_state->skip_intermediate_wm)
+	*a = new_crtc_state->wm.ilk.optimal;
+	if (!new_crtc_state->hw.active ||
+	    drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi) ||
+	    state->skip_intermediate_wm)
 		return 0;
 
 	a->pipe_enabled |= b->pipe_enabled;
@@ -3270,8 +3275,8 @@ static int ilk_compute_intermediate_wm(struct intel_crtc_state *newstate)
 	 * If our intermediate WM are identical to the final WM, then we can
 	 * omit the post-vblank programming; only update if it's different.
 	 */
-	if (memcmp(a, &newstate->wm.ilk.optimal, sizeof(*a)) != 0)
-		newstate->wm.need_postvbl_update = true;
+	if (memcmp(a, &new_crtc_state->wm.ilk.optimal, sizeof(*a)) != 0)
+		new_crtc_state->wm.need_postvbl_update = true;
 
 	return 0;
 }
@@ -3283,12 +3288,12 @@ static void ilk_merge_wm_level(struct drm_i915_private *dev_priv,
 			       int level,
 			       struct intel_wm_level *ret_wm)
 {
-	const struct intel_crtc *intel_crtc;
+	const struct intel_crtc *crtc;
 
 	ret_wm->enable = true;
 
-	for_each_intel_crtc(&dev_priv->drm, intel_crtc) {
-		const struct intel_pipe_wm *active = &intel_crtc->wm.active.ilk;
+	for_each_intel_crtc(&dev_priv->drm, crtc) {
+		const struct intel_pipe_wm *active = &crtc->wm.active.ilk;
 		const struct intel_wm_level *wm = &active->wm[level];
 
 		if (!active->pipe_enabled)
@@ -3388,7 +3393,7 @@ static void ilk_compute_wm_results(struct drm_i915_private *dev_priv,
 				   enum intel_ddb_partitioning partitioning,
 				   struct ilk_wm_values *results)
 {
-	struct intel_crtc *intel_crtc;
+	struct intel_crtc *crtc;
 	int level, wm_lp;
 
 	results->enable_fbc_wm = merged->fbc_wm_enabled;
@@ -3433,9 +3438,9 @@ static void ilk_compute_wm_results(struct drm_i915_private *dev_priv,
 	}
 
 	/* LP0 register values */
-	for_each_intel_crtc(&dev_priv->drm, intel_crtc) {
-		enum pipe pipe = intel_crtc->pipe;
-		const struct intel_pipe_wm *pipe_wm = &intel_crtc->wm.active.ilk;
+	for_each_intel_crtc(&dev_priv->drm, crtc) {
+		enum pipe pipe = crtc->pipe;
+		const struct intel_pipe_wm *pipe_wm = &crtc->wm.active.ilk;
 		const struct intel_wm_level *r = &pipe_wm->wm[0];
 
 		if (drm_WARN_ON(&dev_priv->drm, !r->enable))